/**
 *    Copyright 2009-2017 the original author or authors.
 *
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */
package com.yinsin.jpabatis.scripting.xmltags;

import java.util.List;

/**
 * @author Clinton Begin
 */
public class ChooseSqlNode implements SqlNode {
	private final SqlNode defaultSqlNode;
	private final List<SqlNode> ifSqlNodes;

	public ChooseSqlNode(List<SqlNode> ifSqlNodes, SqlNode defaultSqlNode) {
		this.ifSqlNodes = ifSqlNodes;
		this.defaultSqlNode = defaultSqlNode;
	}

	@Override
	public boolean apply(DynamicContext context) {
		for (SqlNode sqlNode : ifSqlNodes) {
			if (sqlNode.apply(context)) {
				return true;
			}
		}
		if (defaultSqlNode != null) {
			defaultSqlNode.apply(context);
			return true;
		}
		return false;
	}
}
